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    • 9. 发明授权
    • Method of making a coated abrasive article
    • 制造涂层磨料制品的方法
    • US5368618A
    • 1994-11-29
    • US970950
    • 1992-11-03
    • Craig A. MasmarDouglas S. SpencerElizabeth C. Edblom
    • Craig A. MasmarDouglas S. SpencerElizabeth C. Edblom
    • B24D3/28B24D3/34B24D11/00B29C39/18B29C70/64
    • B29C39/18B24D11/005B24D3/28B24D3/342B29C70/64B29C2791/001B29K2105/24B29L2031/736
    • A method of preparing a coated abrasive article in which the presence of multiple layers of abrasive grains are minimized. In one variation, the method comprises the steps of: (a) providing a backing; (b) applying a make coat precursor to the backing; (c) partially curing the make coat precursor; (d) applying, preferably by projecting, a plurality of abrasive grains into the partially cured make coat precursor; and (e) completely curing the partially cured make coat precursor. In another variation of this method, a size coat precursor is applied over the abrasive grains and cured make coat, and the size coat precursor is completely cured. In another variation of this method, a size coat precursor is applied over the abrasive grains and the partially cured make coat precursor, and the make coat precursor and the size coat precursor are completely cured. The make coat precursor preferably comprises an unsaturated resin that polymerizes via a free radical polymerization mechanism at the site of .alpha.,.beta.-unsaturation.
    • 一种制备涂层磨料制品的方法,其中多层磨粒的存在被最小化。 在一个变型中,该方法包括以下步骤:(a)提供背衬; (b)将制作涂层前体施加到背衬上; (c)部分固化该底漆前体; (d)优选通过将多个磨粒投射到部分固化的成膜涂层前体中; 和(e)完全固化部分固化的成膜涂层前体。 在该方法的另一变型中,将大小涂层前体施加在磨料颗粒和固化的底涂层上,并且涂层前体完全固化。 在该方法的另一变型中,将大小涂层前体施加在磨料颗粒和部分固化的涂层前体上,并且制备涂层前体和涂层前体完全固化。 制备涂层前体优选包含通过自由基聚合机理在α,β-不饱和位点聚合的不饱和树脂。